{"uid":"cap_sKLMJdkopnTH6xwxmTlOU","slug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd","name":"Tech Detect — Pay-Per-Call Technology Stack Detection","description":"Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.","url":"https://stack.halowerk.com/stack/articles/bootstrap?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048},"previous":{"type":"object","required":["observed_at","technologies"],"properties":{"observed_at":{"type":"string","maxLength":40},"technologies":{"type":"array","items":{"type":"object","required":["name","category","version"],"properties":{"name":{"type":"string","maxLength":150},"version":{"type":["string","null"],"maxLength":80},"category":{"type":"string","maxLength":80}},"additionalProperties":false},"maxItems":150}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-rJLTtagUR6nif2UCZaod","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Detects the technology stack of a given domain, returning identified technologies with confidence scores and evidence, billed per call in USDC via x402.","exampleAgentPrompt":"Can you detect what technologies are powering https://www.shopify.com — I want to know what frameworks, CMS, CDN, and analytics tools they're using, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitive tech stack research","prompt":"What's the full technology stack behind stripe.com? I need to know their frontend frameworks, backend signals, CDN, and any analytics or A/B testing tools they're running."},{"title":"Sales lead enrichment pipeline","prompt":"I'm building a list of prospects — can you detect the technology stack for acme.io so I know whether they're running Salesforce, HubSpot, or any other CRM we might integrate with?"},{"title":"Security audit pre-assessment","prompt":"Before we start the pen test, can you fingerprint the tech stack at targetclient.com so we know what frameworks and server software to focus our testing on?"}],"resultDescription":"Returns a structured list of detected technologies, each with a name, category (e.g. CMS, CDN, JavaScript framework), version where detectable, a confidence score, and supporting evidence. The response covers the full observable stack of the submitted URL.","failureModes":["URL is unreachable or returns non-2xx — detection may be incomplete or return empty results","Domain blocks scanning or cloaks headers — evidence may be sparse and confidence low","Invalid URL format — request rejected with validation error","Rate or payment failure via x402 — call not processed","URL path pattern (e.g. /articles/bootstrap) may route to article-scoped detection rather than root domain analysis"],"whenToPreferThis":"Choose this endpoint when you need immediate, pay-as-you-go technology fingerprinting without API key registration. It is particularly well-suited for agents, automation pipelines, or one-off lookups where provisioning API credentials is impractical. The optional 'previous' field makes it efficient for incremental monitoring by passing prior results to detect changes. At $0.004 per call it is cost-effective for bulk domain enrichment workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:40:57.335Z","isFirstParty":false,"canonicalSlug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd"}